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Safety Research



Derek Troyer
(614) 387-5164

Ohio Crash data has been used for a variety of different research topics. The completed research below indicates the need for crash data and how it can be used to meet the goals of the State Highway Safety Plan. The conclusions determined in these studies can indicated changes to engineering design, education materials, enforcement strategies and emergency response practices.

These are research topics used for the entire state or country. For information regarding specific locations within the state, please contact the ODOT District Contact.


 Safety Research Document

02/2008Lord, D (Principal Investigator, Texas A&M Research Foundation)n/a

This document explores a methodology designed to predict the safety performance of various elements considered in the planning, design, and operation of nonlimited-access rural multilane highways. ​

04/2010 Council, F.M., M. Reurings, R. Srinivasan, S. Masten, and D. CarterFHWA-HRT-10-024

​This study conducted a detailed examination of recent crash data through the development of a speeding related (SR) crash typology to help define the crash, vehicle, and driver characteristics that appear to result in a higher probability of SR crashes.

01/2009Stamatiadis, N., J. Pigman, J. Sacksteder, W. Ruff, and D. LordNCHRP Report 633

​This report contains the findings of research performed to quantify the safety and operational impacts of design element trade-offs and their associated risks. The report details the research performed and includes specific recommended crash prediction models and Accident Modification Factors (AMFs) for shoulder width and median width on rural four-lane roads. Thus, the report will be of immediate interest to engineers in state highway agencies responsible for geometric design and traffic operations and safety.

01/2008Ullman, G.L., M.D. Finley, J.E. Bryden, R. Srinivasan, and F.M. CouncilNCHRP Report 627

​This report presents the findings of a research project to determine the crash rates for nighttime and daytime work zones, develop management practices that promote safety and mobility in work zones, and develop work-zone crash reporting recommendations to further improve the data collected on work zone crashes.

06/2007Torbic, D.J., D.W. Harwood, D.K. Gilmore, and K.R. Richardn/a

​The objectives of this research are to synthesize the current state of knowledge concerning the safety assessment of new or modified interchanges; develop a spreadsheet-based computational tool for performing safety assessments of interchanges; and identify gaps in knowledge concerning interchange safety assessment and future research needs to fill those gaps.

11/2006Srinivasan, R., M. Parker, D. Harkey, D. Tharpe, and R. SumnerNCHRP Project 3-67

​The objective of this project was to develop a knowledge-based expert system for recommending speed limits in speed zones that are considered to be credible and enforceable.


Protection of Data from Discovery & Admission into Evidence
Section 148(g)(4) stipulates that data compiled or collected for the preparation of safety lists “…shall not be subject to discovery or admitted into evidence in a Federal or State court proceeding or considered for other purposes in an action for damages arising from any occurrence at a location identified or addressed in such reports…” This information is also protected by 23 USC 409 (discovery and admission as evidence of certain reports and surveys).